同种异体肌腱的抗拉性能

Capability for anti-stretch of 4 allogeneic tendon grafts

目的 :研究几种肌腱移植材料的抗拉性能。方法 :采用深低温冷冻、深低温冷冻干燥、未经处理自体移植、未经处理异体肌腱移植 ,3周后分别进行抗拉性能测试。结果 :经深低温冷冻、深低温冷冻干燥同种异体肌腱移植的抗拉性能明显优于未经处理的同种异体肌腱 (P <0 .0 5 ) ,而与自体肌腱差异无统计学意义 (P >0 .0 5 )。结论 :深低温冷冻干燥或不干燥同种异体肌腱的抗拉性能与自体肌腱基本相同 。

Objective To research the biomechanic property of 4 tendon grafts.Methods The biomechanic properties of profound hypothermua froze tendon allogeneic grafts, profound hypothermua froze and dried allogeneic tendon grafts,autologous tendon grafts and allogeneic tendon grafts without intervention were tested.Results The biomechanic property of allogeneic tendon grafts with profound hypothermua freezing and profound hypothermua freezing and dying was better than that of allogeneic tendon grafts without intervention ( P <0.05).No significant difference was seen between the former 2 grafts and dried autologous tendon grafts( P >0.05).Conclusion Allogeneic tendon grafts with profound hypothermua freezing and profound hypothermua freezing and drying, have the same biomechanic property as dried autologous tendon grafts and can be used in clinical practice.